Attributes are made of more than one simple attribute.
Types of Attributes • Simple attribute− Simple attributes are atomic values, which cannot be divided further. For example, a student's phone number is an atomic value of 10 digits. • Composite attribute− Composite attributes are made of more than one simple attribute. For example, a student's complete name may have first_name and last_name. • Derived attribute− Derived attributes are the attributes that do not exist in the physical database, but their values are derived from other attributes present in the database. For example, average_salary in a department should not be saved directly in the database, instead it can be derived. For another example, age can be derived from data_of_birth. • Single-value attribute− Single-value attributes contain single value. For example − Social_Security_Number. • Multi-value attribute− Multi-value attributes may contain more than one values. For example, a person can have more than one phone number, email_address, etc.
Who among the following is married to F?
If ‘A + B’ means that A is the father of B, ‘A x B’ means that A is the mother of B, ‘A - B’ means ‘A’ is the wife of B, then which of ...
How is Y’s brother related to mother-in-law of V?
How is T related to E?
How I related to F?
I. B is the brother of C.
II. D is the daughter of C.
III. L is the sister of B
IV. H is the mother of D.
How L is r...
How is H related to son of M?
If “D$E*F&G#H”, then How E’s only son is related to F?
How is J related to G?
Who is the mother of O?